RH Turn
When the turn signal switch is moved to the right position, BCM output turn signal from BCM terminal 46, interpreting it as turn signal is ON.
Connected from BCM terminal 46 to front combination lamp RH terminal 4.
Turn signal lamp turns on
- through front combination lamp RH terminal 8
- to ground E21, E50 and E51.
Connected form BCM terminal 46 to rear combination lamp control unit terminal 5.
Rear turn signal (LED) turns on
- through rear combination lamp control unit terminal 9
- to rear combination lamp RH terminal 3
- through rear combination lamp RH terminal 4
- to rear combination lamp control unit terminal 8.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn on, rear combination lamp control unit sends signal to unified meter and A/C amp. Unified meter and A/C amp. sends LED burnout status signal to BCM through CAN communication lines for speeding up turn signal blinking.